Synonyms for Foully:

adv

evilly (adverb)
destructively, abominably, damnably, monstrously, repulsively, offensively, heinously, Sinisterly, wickedly, nefariously, repellently, atrociously, revoltingly, Repugnantly, hideously, calamitously, loathsomely, reprehensibly, terribly, disgracefully, detrimentally, sinfully, evilly, badly.
malevolently (adverb)
hatefully, viciously, virulently, Sinisterly, wickedly, evilly, malignantly, ill-naturedly, maliciously, hurtfully, venomously, corrosively, cattily, malevolently, bitterly, antagonistically, spitefully, meanly, nastily.
uncleanly (adverb)
grubbily, shabbily, uncleanly, dirtily, dustily, dingily, untidily, slovenly, odiously, sloppily, Impurely, smuttily.

adv.

all (adverb)
insultingly.
evilly (adverb)
destructively, abominably, damnably, monstrously, repulsively, offensively, heinously, Sinisterly, wickedly, nefariously, repellently, atrociously, revoltingly, Repugnantly, hideously, calamitously, loathsomely, reprehensibly, terribly, disgracefully, detrimentally, sinfully, evilly, badly.
malevolently (adverb)
malevolently, nastily, viciously, spitefully, antagonistically, virulently, bitterly, hurtfully, hatefully, maliciously, malignantly, cattily, ill-naturedly, meanly, corrosively, venomously.
uncleanly (adverb)
grubbily, shabbily, uncleanly, dirtily, dustily, dingily, untidily, slovenly, odiously, sloppily, Impurely, smuttily.

n.

foully (noun)
insultingly.

Other synonyms:

Other relevant words:
abominably, insultingly.